Results 111 to 120 of about 5,339 (225)

Estudos de características e especificações de calibradores de dose comerciais [PDF]

open access: yes
Os medidores de atividade (ou calibradores de dose) são utilizados para determinação da atividade total apresentada por um radionuclídeo. Neste relatório é feito um estudo das principais características e especificações de modelos comerciais de medidores
Fonseca, Antônio Carlos Corrêa   +1 more
core  

Automatización de invernadero para cultivos hidropónicos en El Salvador [PDF]

open access: yes, 2017
Este estudio muestra de manera concisa la historia del surgimiento de la hidroponía en el mundo del ser humano, desde sus orígenes hasta su llegada y crecimiento en Latinoamérica, lo que permitió implementar proyectos y desarrollar investigaciones que ...
López Guevara, Leonel Eduardo   +2 more
core  

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Diseño, construcción y montaje de la domótica demostrativa aplicada a una vivienda a escala en la que se incluye el control de luminosidad, temperatura, sistema de seguridad, alarma contra incendios y apertura de puertas, cortinas y ventanas [PDF]

open access: yes, 2009
The following thesis project describes the design, construction and installation of a demonstrative home automation applied to a scaled house. The project includes: the design and implementation of demonstrative home automation in a model house, the ...
Bonilla Arcos, Andrés Sebastián   +2 more
core  

VIVID: A qPCR‐Based Platform for Sensitive and Quantitative In Vivo Tracking of Extracellular Vesicles

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces VIVID (Vesicle In Vivo Identification using DNA), a qPCR‐based platform that tracks PCR‐amplifiable DNA tags loaded in the EVs for accurate and quantifiable EV biodistribution in vivo. ABSTRACT Extracellular vesicles (EVs) represent promising carriers for nucleic acid therapeutics, offering advantages over synthetic nanoparticles ...
Oscar Boyadjian   +5 more
wiley   +1 more source

Controlador multivariable adaptativo el tipo PI con asignación robusta de valores propios para un sistema de generación eólica basado en un DFIG [PDF]

open access: yes, 2015
En esta tesis se usa una metodología de investigación y control para un generador eólico basado en un generador de inducción doblemente alimentado (DFIG), ser a puesto a prueba en el software Matlab mediante el Toolbox llamado Wind Turbine Double ...
Madrid Patiño, Daniel Fernando   +1 more
core  

In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez   +4 more
wiley   +1 more source

Conversor Cc-ca Trifásico Com Comutação Em Baixa Frequência E Baixa Distorção HarmÈnica [PDF]

open access: yes, 2002
Conversor CC-CA trifásico com comutação em baixa frequência e baixa distorção harmônica, caracterizado pelo fato de que o conversor CC-CA trifásico ora tratado utiliza um circuito que é uma estrutura em ponte, possuindo seis transistores, que podem ser ...
Pomilio Jose Antenor
core  

Artifact‐Minimizing Ultrathin Transparent Electrodes Fabricated via iCVD for In Vivo Optogenetic Stimulation and Neural Signal Monitoring of Primary Visual Cortex

open access: yesAdvanced Functional Materials, EarlyView.
We present ultrathin flexible transparent electrodes through iCVD‐enabled molecular control of 10 nm gold films on poly(dimethylaminomethylstyrene). In vivo validation demonstrated photoelectric artifact reduction vs. opaque electrodes and preservation of natural neural dynamics.
Tae Jin Mun   +11 more
wiley   +1 more source

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

open access: yesAdvanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo   +7 more
wiley   +1 more source

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